I'm not in love with my own vocals, either! But I turn 'em up anyway, because most times it's the lyrics that deserve the spotlight that volume gives them. If the lyrics are twaddle, then mumble away and keep them buried in guitar mud - who cares? :)
For some songs I wish the vocals
were buried in a deep noisy hole.
And to add a counterweight to your opinion, I'd say your voice is remarkably pleasant and consistently enjoyable. Turn 'em up!
cheers,
-Tom